• 福建醫(yī)科大學(xué)附屬協(xié)和醫(yī)院普外科大腸癌專業(yè)組(福州350001);

目的 了解直腸末端系膜附著緣的解剖標(biāo)志及其形態(tài)分布對(duì)全直腸系膜切除(TME)手術(shù)的影響。方法收集由同一組醫(yī)師連續(xù)手術(shù)切除的220例中、低位直腸癌大體標(biāo)本,分為兩組。Ⅰ組(保肛組): 又分為Ⅰa組,低位直腸前切除術(shù)(LAR術(shù)),81例,限直腸癌下緣距肛緣5~6 cm者; Ⅰb組,直腸前切除術(shù)(AR術(shù)),68例,限直腸癌下緣距肛緣7~8 cm者。Ⅱ組(切肛組): 腹會(huì)陰聯(lián)合直腸切除術(shù)(APR術(shù)),71例,限直腸癌下緣距肛緣<5 cm者。結(jié)果①直腸末端系膜環(huán)形附著緣位于肛提肌的肛縫以上1.0 cm腸壁上,但該水平恰好與低位直腸癌下緣齊平。因此,為了滿足2~3 cm下切端,在肛縫以下分離直腸肌性管道行LAR術(shù)時(shí),要小心避免損傷腸壁。 ②直腸末端系膜附著于腸壁上呈環(huán)形片狀,而非環(huán)形線狀,與直腸后壁間僅有少量脂肪組織,其縱向附著長(zhǎng)度約為(1.269±0.171) cm(LAR組81例+APR組71例),當(dāng)行AR術(shù)時(shí),其下切緣恰好位于系膜的片狀附著區(qū)內(nèi),在裸化直腸時(shí),要小心謹(jǐn)慎,以免損傷腸壁。結(jié)論直腸末端系膜呈環(huán)形片狀附著于肛提肌的肛縫上1.0 cm處,在行低位或超低位直腸前切除,裸化直腸壁時(shí)要仔細(xì)分離,以免損傷腸壁,導(dǎo)致術(shù)后腸瘺。

引用本文: 池畔,林惠銘. 直腸末端系膜解剖在直腸癌根治術(shù)中的意義. 中國(guó)普外基礎(chǔ)與臨床雜志, 2003, 10(2): 106-107. doi: 復(fù)制

版權(quán)信息: ?四川大學(xué)華西醫(yī)院華西期刊社《中國(guó)普外基礎(chǔ)與臨床雜志》版權(quán)所有,未經(jīng)授權(quán)不得轉(zhuǎn)載、改編

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